Lathe attachment.



' A. E. WHITING.

LATHE ATTACHMENT. APPLICATION FILED JULY 26, 1907.

900,457, Patented Oct. 6,1908.

WITNESSES INVENTOl-P I H I fikkw m/ffo ATTORNEYS was O q AROHI'E E. ama or WESTON, Wnsi VIRGINIA.

i na'rzmfa rraemmiw.

To all whom it may concern:

Be it known that I, ARCHIE E. WRITING, a citizen of the United States, and a resident of Weston, in the countyof Lewis and State of West Virginia, have invented a new and Improved Lathe Attachment, of which the following is a full, clear, and exact description.

after and then pointed out in the claim.

A practical embodimentof. the invention 1s represented in the accompanying drawings forming a part of this specification, 1n

which similar characters of reference indicate corresponding parts in all the views.

Flgui" 1 as a slde elevation of the unprovement as applied; Fig.2 is an enlarged transverse section of the' same, on the line 2-2 of Fig. 1, and Fig. 3 is a perspective view of one of the liners.

On the body A of the lathe is mounted to travel longitudinally the usual carriage B, on which are mounted the spaced supporting devices C and G for supporting the cylinderor other work D, to be bored by the usual boring tool E, extending centrally through the work D. .Each of the devices C and C is adjustable, to raise or lower either or both ends of the work D. or to shift either or both ends of the work in a transverse direction, so as to bring the work D accurately into axial alinement with the lathe. The supporting devices C and C are alike in construction and each is arrangedas follows: A support F is removably secured to the carriage B, and is for this purpose provided. with tongues F fitting the, longltudlnally extending T-slots B arranged on the front and rear ends of the carriage B, as plainly illustrated in Fig. 2, and. the said T-slots B are engaged by clamping bolts F extending through the front and rear ends of the support F, to fasten tlle' latter in position on top of the carriage B.. On the top of the support F are mounted the transversely extending wedges G and G, of which the Specification oil Letters Patent. Application filed m 25, 1907., Serial in. 385,466.

' Patented 0 e, 1908.

wedge isengaged at its under side by the top of the wedge G, so that. when the latter is moved transversely the wedge G is raised or lowered according to the direction in which the wed e G 1s moved. The wedge G after having een raised to the desired position is fastened in place by a bolt H, extending through an elongated slot in a lug F and screwin in the rear end of the wedge ,G. In the we ge G screws a transverselyextending screw rod I mounted to turn in :1 lug F formed near the front end of the support F, to permit the operator to move the wedge G transversely in a rearward or a forward direction, according to the direction in which the screw rod I is turned. On top of the wedge G is arran ed a rest J having a V-shaped-top. for the cylinder or other work Drto rest on, and the said rest J is adapted to be shifted in a transverse direction by set screws K screwing in lugs Gr formed on top of the wedge G. Now by the arrangement described the wedge G can be raised or low cred, and'with it the rest J, to raise or lower the corresponding end of the work D, and by the operator adjusting the set screws K, the rest J can be shifted transversely, to shift the corresponding end of the work D in a like direction.

In order to securely hold the several parts of each supporting device C, C in position after the desired adjustment is made, a elanipingbolt L is provlded, disposed vertically and secured at its upper end in the rest J, the bolt extending through elongated slots in the wedges G, G and the support F, the under side of which is engaged by a nut L of the bolt L, to clamp the rest J on the wedge G, and the latter on the wedge G and the latter down on the support F, to securely hold the several parts in place. Suitable keys N, fitting suitable key-ways, are provided for the wedges G, G and the rest J to slide on, as indicated in Fig. 2.

When it is requiredto raise each supporting deViceC, C more than the vertical adjustment permitted by the wedge G, then liners O are employed and interposed between the front and rear ends of the support F and the top of the carriage B. Each of the liners O is provided at its under side with a lug O for engagement with the T- slot B', and on the top of .the liners O is arranged a groove .0 for receiving the corresponding lug F of the support F. Sets of liners of diiferent thicknesses may be provided to raise the support F the desired distance on the carriage B.

It is understood that by the arrangement described minute adjustment of the sup.- porting devices C and C may be had to bring the work D into accurate axial ahnement with the lathe.

Having thus described my invention, I claim as new and desire to secure by Letters Patent:

A lathe attachment comprising a support for attachment to the lathe carriage, wedges arranged transversely of the support and 1 slidable on each other, a rest on the upperranged, and bolts threaded through the lugs and engaging the rest whereby to adjust said rest longitudinally of the wedge, and transversely oi the support.

In testimony whereof I have signed my name to this specification in the presence of 5 two subscribing witnesses.

ARCHIE E. WVHITING. Witnesses W. S. HOSKINS, L. K. DUNHAM. 

